Minimum height
min-height
Specify the minimum height for elements that automatically change their size.
Property values
This value will be used when the text of an element is so short that it doesn't fill the full height of the element. In this case the extra height is left as empty space.
It is also used when an element is resized and shrinks below the full height needed for its text. In this case the text will be subject to the overflow-y property, which will either cause a vertical scrollbar to appear or cause the overflowing text to be hidden.
Units
Use any of these font-relative typographic units to set the element's minimum height:
| em | em | The font-size of the current font |
| rem | relative em | The font-size of the <html> element |
| lh | line height | The line-height of the current font |
| rlh | relative line height | The line-height of the <html> element |
| cap | cap height | The nominal height of the current font's capital letters |
| ex | "x" | The height of the current font's "x" glyph |
Or use any of these fixed size units which are independent of the current font:
| % | percent | A percentage of the parent element's height |
| in | inch | A size equal 96px |
| px | pixels | A size equal to 1/96 inch |
| pt | point | A size equal 1in/72 = 1.33px |
| pc | pica | A size equal 1in/6 = 12pt = 16px |
| cm | centimeter | A size equal to 96px/2.54 = 37.8px |
| mm | millimeter | A size equal to 96px/25.4 = 3.8px |
| Q | quarter millimeter | A size equal to 96px/1016 = 0.94px |
Or use these viewport-percentage units which account for different display device capabilities:
| vh | viewport height | 1% of the viewport's height |
| vw | viewport width | 1% of the viewport's width |
| vi | viewport inline axis | 1% of the viewport's inline axis |
| vb | viewport block axis | 1% of the viewport's block axis |
| vmin | viewport minimum | Either vh or vw, whichever is smaller |
| vmax | viewport maximum | Either vh or vw, whichever is larger |
Examples
min-height: 25%;